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TI-2019-07489 Aliases CVE-2019-10168GHSA-v3hc-v42h-rp66

Improper access control in libvirt

Priority LOW 35CWE-250Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation, Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-250 and CWE-284.

Summary

The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accept an "emulator" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.

Why it matters now

EPSS 0.00549 46th percentileScored 2026-11-07
Fix Fixed libvirt (libvirt): 4.10.1, 5.4.1Red Hat: 4 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
libvirtlibvirt4.x to before 4.10.1; 5.x to before 5.4.14.10.1, 5.4.1Patch availableCNA
  • libvirt Vendorlibvirt Affected 4.x to before 4.10.1; 5.x to before 5.4.1 Fixed in 4.10.1, 5.4.1 Patch available CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*4.0.0 to before 4.10.1; 5.0.0 to before 5.4.1VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
  • cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:* Versions 4.0.0 to before 4.10.1; 5.0.0 to before 5.4.1 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:virtualization:4.3:*:*:*:*:*:*:*4.3VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:virtualization:4.3:*:*:*:*:*:*:* Versions 4.3 Vulnerable ·Red Hat

Remediation

  • Fix · CNA libvirt (libvirt) Fixed in 4.10.1, 5.4.1

Red Hat 4 advisories

  • RHSA-2019:1762 Released 2019-07-11 · Red Hat rating Important
    virt:8.0.0 security update
    • Red Hat Enterprise Linux 8 Advanced Virtualization SLOF-20180702-3.git9b7ab2f.module+el8.0.0.z+3438+2851622e.noarch::virt:8.0.0, SLOF-20180702-3.git9b7ab2f.module+el8.0.0.z+3438+2851622e.src::virt:8.0.0, hivex-1.3.15-6.module+el8.0.0.z+3438+2851622e.aarch64::virt:8.0.0 +47
  • RHSA-2019:1699 Released 2019-07-08 · Red Hat rating Important
    redhat-virtualization-host security and enhancement update
    • RHEL 7-based RHEV-H for RHEV 4 (build requirements) redhat-release-virtualization-host-4.3.4-1.el7ev, redhat-virtualization-host-image-update-placeholder-4.3.4-1.el7ev
    • Red Hat Virtualization 4 Hypervisor for RHEL 7 redhat-virtualization-host-4.3.4-20190620.3.el7_6, redhat-virtualization-host-image-update-4.3.4-20190620.3.el7_6
  • RHSA-2019:1580 Released 2019-06-20 · Red Hat rating Important
    virt:rhel security update
    • Red Hat Enterprise Linux AppStream (v. 8) SLOF-20171214-5.gitfa98132.module+el8.0.0.z+3418+a72cf898.noarch::virt:rhel, SLOF-20171214-5.gitfa98132.module+el8.0.0.z+3418+a72cf898.src::virt:rhel, hivex-1.3.15-6.module+el8.0.0.z+3418+a72cf898.aarch64::virt:rhel +47
Show 1 more Red Hat advisories
  • RHSA-2019:1579 Released 2019-06-20 · Red Hat rating Important
    libvirt security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +21
    • Red Hat Enterprise Linux Client Optional (v. 7) libvirt-admin-4.5.0-10.el7_6.12, libvirt-daemon-lxc-4.5.0-10.el7_6.12, libvirt-devel-4.5.0-10.el7_6.12 +4
    • Red Hat Enterprise Linux ComputeNode (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-admin-4.5.0-10.el7_6.12, libvirt-daemon-4.5.0-10.el7_6.12 +25
    • Red Hat Enterprise Linux Server (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +26
    • Red Hat Enterprise Linux Server Optional (v. 7) libvirt-admin-4.5.0-10.el7_6.12, libvirt-daemon-lxc-4.5.0-10.el7_6.12, libvirt-lock-sanlock-4.5.0-10.el7_6.12 +3
    • Red Hat Enterprise Linux Workstation (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +23
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libvirt-admin-4.5.0-10.el7_6.12, libvirt-daemon-lxc-4.5.0-10.el7_6.12, libvirt-lock-sanlock-4.5.0-10.el7_6.12 +2
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12, libvirt-client-4.5.0-10.el7_6.12 +21
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) libvirt-4.5.0-10.el7_6.12, libvirt-admin-4.5.0-10.el7_6.12, libvirt-bash-completion-4.5.0-10.el7_6.12 +26

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
RHEL 7-based RHEV-H for RHEV 4 (build requirements)Fixed RHSA-2019:1699
Red Hat Enterprise Linux 8 Advanced VirtualizationFixed RHSA-2019:1762
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2019:1580
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2019:1579
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2019:1579
Red Hat Virtualization 4 Hypervisor for RHEL 7Fixed RHSA-2019:1699
Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Storage 3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-10168
  2. 2026-10-03 Alias added: GHSA-v3hc-v42h-rp66

References

Advisory 3

  • TI-2019-07455 Incorrect permission assignment in libvirt CVSS 3.0HIGH 8.8
  • TI-2018-00984 Uncontrolled resource consumption in libvirt CVSS 3.0HIGH 7.5
  • TI-2019-07488 Improper access control in libvirt CVSS 3.1HIGH 7.8
  • TI-2019-07482 Improper access control in libvirt CVSS 3.1HIGH 7.8
  • TI-2019-07487 Improper access control in libvirt CVSS 3.1HIGH 7.8
  • TI-2020-08604 NULL pointer dereference in libvirt CVSS 3.1MEDIUM 6.5
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences